1 10 8 https://www.iowaheritage.org/files/original/1446f10306e3ba82c2bac35bdac6e575.jpg 290bd837580d41d4b00563c5fe030859 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 159 Height 98 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource African American Women in Iowa Collection Description An account of the resource Historian Darlene Clark Hine said: "There is an urgent need to discover and collect more primary source materials pertaining to the lives and experiences of ordinary middle western Black women in both rural and urban communities." Although Hine and her colleagues centered their efforts on African-American women in Illinois, Indiana, and Michigan -- states which traditionally have had more sizable black populations than Iowa -- the history of African-American women in this state is no less important. Indeed, Iowa's African women share a collective history that is both precious and powerful but all too seldom explored. --Kathryn M. Neal, from Giving Our History a Home: The African-American Women in Iowa Project. Contributor An entity responsible for making contributions to the resource African American Historical Museum and Cultural Center of Iowa University of Iowa Libraries, Iowa Women's Archives Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2005-08-10 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context cpc89.jpg 0089 1475 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation Title A name given to the resource Cedar Valley Stage limestone with lentincular masses included between the strata, Iowa City, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs; Dry collodion negatives https://www.iowaheritage.org/files/original/bba8b1f0b9a7ee5f50f5f0f15163b290.jpg 290bd837580d41d4b00563c5fe030859 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 159 Height 98 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Calvin Geological Photographs Description An account of the resource During the mid-1800's photography became a popular hobby and natural tool for scientists. Samuel Calvin, Professor of Natural Sciences at the University of Iowa (1873-1911) and State Geologist, took more than 5,000 photographs, which he used to illustrate specific geological features for class instruction, public lectures, and publications. In addition to geological landscapes and features, Calvin and his colleagues documented mines, quarries, mills, and other buildings. The collection, held by the University of Iowa Department of Geoscience, also contains portraits of Calvin's family, colleagues, and classes in the field. Contributor An entity responsible for making contributions to the resource University of Iowa, Department of Geoscience Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2005-08-10 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context cpc89.jpg 0089 1475 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation Title A name given to the resource Cedar Valley Stage limestone with lentincular masses included between the strata, Iowa City, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs; Dry collodion negatives https://www.iowaheritage.org/files/original/e845a954ffcea81f0a53719e05708be7.jpg bbce4fa24825c7fc3addb910c0e2d4d2 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 158 Height 100 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource African American Women in Iowa Collection Description An account of the resource Historian Darlene Clark Hine said: "There is an urgent need to discover and collect more primary source materials pertaining to the lives and experiences of ordinary middle western Black women in both rural and urban communities." Although Hine and her colleagues centered their efforts on African-American women in Illinois, Indiana, and Michigan -- states which traditionally have had more sizable black populations than Iowa -- the history of African-American women in this state is no less important. Indeed, Iowa's African women share a collective history that is both precious and powerful but all too seldom explored. --Kathryn M. Neal, from Giving Our History a Home: The African-American Women in Iowa Project. Contributor An entity responsible for making contributions to the resource African American Historical Museum and Cultural Center of Iowa University of Iowa Libraries, Iowa Women's Archives Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2007-11-29 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context 0088 1472 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs View related article: http://cdm.lib.uiowa.edu/u?/digs,6540 Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation People Quarrying Title A name given to the resource Men in quarry in Devonian limestone, Cedar Valley Stage, Iowa City, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs; Dry collodion negatives https://www.iowaheritage.org/files/original/e18b8868c7b83e2d542a0795b840fa85.jpg bbce4fa24825c7fc3addb910c0e2d4d2 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 158 Height 100 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Calvin Geological Photographs Description An account of the resource During the mid-1800's photography became a popular hobby and natural tool for scientists. Samuel Calvin, Professor of Natural Sciences at the University of Iowa (1873-1911) and State Geologist, took more than 5,000 photographs, which he used to illustrate specific geological features for class instruction, public lectures, and publications. In addition to geological landscapes and features, Calvin and his colleagues documented mines, quarries, mills, and other buildings. The collection, held by the University of Iowa Department of Geoscience, also contains portraits of Calvin's family, colleagues, and classes in the field. Contributor An entity responsible for making contributions to the resource University of Iowa, Department of Geoscience Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2007-11-29 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context 0088 1472 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs View related article: http://cdm.lib.uiowa.edu/u?/digs,6540 Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation People Quarrying Title A name given to the resource Men in quarry in Devonian limestone, Cedar Valley Stage, Iowa City, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs; Dry collodion negatives https://www.iowaheritage.org/files/original/44fd7478416a0c91a94cc863f90f5be1.jpg 8dee4ecd1045767c2df7dd88b3922af9 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 159 Height 98 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource African American Women in Iowa Collection Description An account of the resource Historian Darlene Clark Hine said: "There is an urgent need to discover and collect more primary source materials pertaining to the lives and experiences of ordinary middle western Black women in both rural and urban communities." Although Hine and her colleagues centered their efforts on African-American women in Illinois, Indiana, and Michigan -- states which traditionally have had more sizable black populations than Iowa -- the history of African-American women in this state is no less important. Indeed, Iowa's African women share a collective history that is both precious and powerful but all too seldom explored. --Kathryn M. Neal, from Giving Our History a Home: The African-American Women in Iowa Project. Contributor An entity responsible for making contributions to the resource African American Historical Museum and Cultural Center of Iowa University of Iowa Libraries, Iowa Women's Archives Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2007-11-30 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context cpc85.jpg 0085 1473 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs View related article: http://cdm.lib.uiowa.edu/u?/digs,6540 Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation Quarrying Title A name given to the resource Quarry in Devonian limestone, Cedar Valley Stage, showing two parallel joints, Iowa City, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs; Dry collodion negatives https://www.iowaheritage.org/files/original/48de0eba8e4ec377c130f6aa0a0dfdf1.jpg 8dee4ecd1045767c2df7dd88b3922af9 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 159 Height 98 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Calvin Geological Photographs Description An account of the resource During the mid-1800's photography became a popular hobby and natural tool for scientists. Samuel Calvin, Professor of Natural Sciences at the University of Iowa (1873-1911) and State Geologist, took more than 5,000 photographs, which he used to illustrate specific geological features for class instruction, public lectures, and publications. In addition to geological landscapes and features, Calvin and his colleagues documented mines, quarries, mills, and other buildings. The collection, held by the University of Iowa Department of Geoscience, also contains portraits of Calvin's family, colleagues, and classes in the field. Contributor An entity responsible for making contributions to the resource University of Iowa, Department of Geoscience Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2007-11-30 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context cpc85.jpg 0085 1473 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs View related article: http://cdm.lib.uiowa.edu/u?/digs,6540 Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation Quarrying Title A name given to the resource Quarry in Devonian limestone, Cedar Valley Stage, showing two parallel joints, Iowa City, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs; Dry collodion negatives https://www.iowaheritage.org/files/original/90708128bfcf34d12419f300c32df0a1.jpg ca6a889c4db53ac8ba008bfc8b121120 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 158 Height 99 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource African American Women in Iowa Collection Description An account of the resource Historian Darlene Clark Hine said: "There is an urgent need to discover and collect more primary source materials pertaining to the lives and experiences of ordinary middle western Black women in both rural and urban communities." Although Hine and her colleagues centered their efforts on African-American women in Illinois, Indiana, and Michigan -- states which traditionally have had more sizable black populations than Iowa -- the history of African-American women in this state is no less important. Indeed, Iowa's African women share a collective history that is both precious and powerful but all too seldom explored. --Kathryn M. Neal, from Giving Our History a Home: The African-American Women in Iowa Project. Contributor An entity responsible for making contributions to the resource African American Historical Museum and Cultural Center of Iowa University of Iowa Libraries, Iowa Women's Archives Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2005-08-09 Description An account of the resource Located in Twp. 81, R. VII, Section 22 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context cpc92.jpg 0092 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation Quarrying Title A name given to the resource Quarry in Devonian Limestone, near Iron Bridge, northwest of North Liberty, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs https://www.iowaheritage.org/files/original/3bd968cf9afa18363520daf8b1823526.jpg ca6a889c4db53ac8ba008bfc8b121120 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 158 Height 99 Bit Depth 8 Channels 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Calvin Geological Photographs Description An account of the resource During the mid-1800's photography became a popular hobby and natural tool for scientists. Samuel Calvin, Professor of Natural Sciences at the University of Iowa (1873-1911) and State Geologist, took more than 5,000 photographs, which he used to illustrate specific geological features for class instruction, public lectures, and publications. In addition to geological landscapes and features, Calvin and his colleagues documented mines, quarries, mills, and other buildings. The collection, held by the University of Iowa Department of Geoscience, also contains portraits of Calvin's family, colleagues, and classes in the field. Contributor An entity responsible for making contributions to the resource University of Iowa, Department of Geoscience Remote Item Item imported from a remote repository Source URL Source URL description ... <a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Calvin, S. (Samuel), 1840-1911 Date A point or period of time associated with an event in the lifecycle of the resource 1895/1910 2005-08-09 Description An account of the resource Located in Twp. 81, R. VII, Section 22 Format The file format, physical medium, or dimensions of the resource jpeg 5 7 Identifier An unambiguous reference to the resource within a given context cpc92.jpg 0092 173611416 https://digital.lib.uiowa.edu/ Publisher An entity responsible for making the resource available University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo Relation A related resource Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs Rights Information about rights held in and over the resource This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Source A related resource from which the described resource is derived Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. Subject The topic of the resource Geology United States -- Iowa -- Johnson County -- Iowa City 190- Paleozoic -- Devonian Cedar Valley Formation Quarrying Title A name given to the resource Quarry in Devonian Limestone, near Iron Bridge, northwest of North Liberty, Iowa, late 1890s or early 1900s Type The nature or genre of the resource Still image Photographs